Novel transmittance change of polyelectrolyte hydrogen in DC electric field

Xianju Zhou, Lihui Weng, Jianming Zhang, Deyan Shen, Jian Xu

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


A novel transmittance change of poly(acrylamide-co-acrylic acid) hydrogel in a DC electric field was observed. Transmittance of a specimen increased when the electric field was on and decreased by removing the electric force. In certain cases, the sample was able to switch from white opaque to colorless transparent. The rate and extent of the transition depended on the applied electric potential, ambient temperature, and composition of the specimen. These observations are closely related to the dissociation of hydrogen bonding in the network induced by an external electric field.

Original languageEnglish (US)
Pages (from-to)2290-2295
Number of pages6
JournalJournal of Polymer Science, Part B: Polymer Physics
Issue number19
StatePublished - Oct 1 2003


  • DC electric field
  • Hydrogels
  • Hydrogen bonding
  • Polyelectrolytes
  • Transparency


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